2 5 1 6 4 7 5 9 2 8 6 4 5 2 8 1 7 9 4 3 7 9 5 3 3 6 1 8 13-02-2018.......hard 13-02-2018 www.daily-sudoku-puzzle.com

2 5 8 9 3 1 6 4 7 4 6 1 7 5 8 2 3 9 3 7 9 4 6 2 8 5 1 8 3 6 2 4 9 1 7 5 9 2 7 5 1 6 3 8 4 1 4 5 8 7 3 9 2 6 6 1 4 3 8 7 5 9 2 7 8 2 1 9 5 4 6 3 5 9 3 6 2 4 7 1 8

4=>(6,2) | 9=>(9,2) | 5=>(3,8) | 2=>(8,3) | 2=>(9,5) | 4=>(9,6) | 9=>(7,8) | 5=>(9,1) | 7=>(7,6) | 4=>(8,7) | 7=>(9,7) | 4=>(5,9) | 5=>(7,7) | 6=>(8,8) | 4=>(1,8) | 3=>(1,5) | 7=>(1,9) | 4=>(3,4) | 7=>(5,3) | 6=>(6,9) | 7=>(4,8) | 2=>(7,9) | 1=>(3,9) | 7=>(3,2) | 9=>(3,3) | 6=>(3,5) | 9=>(1,4) | 1=>(2,3) | 5=>(6,3) | 5=>(5,4) | 8=>(7,5) | 8=>(1,3) | 3=>(3,1) | 6=>(7,1) | 8=>(4,1) | 6=>(2,2) | 8=>(2,6) | 1=>(8,4) | 1=>(5,5) | 6=>(5,6) | 1=>(7,2) | 8=>(8,2) | 9=>(5,1) | 3=>(4,2) | 1=>(4,7) | 2=>(4,4) | 9=>(4,6) | 8=>(6,4) | 3=>(5,7) | 3=>(6,6) | 3=>(2,8) | 2=>(2,7) | 2=>(6,8) |